Combination of carotenoid, phytooestrogen and vitamin c for moisturizing the skin

Abstract

The present invention relates to the use of a combination (i) of at least one carotenoid, (ii) of at least one phytooestrogen, and (iii) of vitamin C, as an active agent for moisturizing the skin, for the preparation of a cosmetic composition that is suitable for orally administering a daily dose of from 1 to 25 mg of the said carotenoid, from 10 to 300 mg of a phytooestrogen and from 10 to 1000 mg of vitamin C.

1 . A method for moisturizing skin, comprising orally administering a cosmetic composition comprising a combination (i) of at least one carotenoid, (ii) of at least one phytooestrogen, and (iii) of vitamin C, as an active agent, wherein a daily dose of the carotenoid is 1 to 25 mg, a daily dose of the phytooestrogen is 10 to 300 mg and a daily dose of the vitamin C is 10 to 1000 mg. 
     
     
         2 . The method of  claim 1 , which preserves or increases a water content of the skin. 
     
     
         3 . The method of  claim 1 , which treats or prevents skin dryness. 
     
     
         4 . The method of  claim 1 , which treats or prevents a non-pathological constitutional dryness or a non-pathological acquired dryness of the skin. 
     
     
         5 . The method of  claim 1 , which treats or prevents one or both skin dryness conditions selected from the group consisting of:
 skin dryness accompanied by squamous states and itching, and   tautness associated with dry skin.   
     
     
         6 . The method of  claim 1 ,
 which physiologically restores a suitable state of moisturization of stratum corneum,   which improves comfort of dry skin,   which combats a dull or lifeless appearance of dry skin as a consequence of its drying-out, or   which treats skin that has undergone a desiccating exogenous stress induced by: a chemical product, radiation peeling, or rubbing the skin with an external substance.   
     
     
         7 . The method of  claim 1 , wherein the phytooestrogen comprises at least one isoflavonoid selected from the group consisting of an isoflavone, an isoflavanone, a rotenoid, a pterocarpan, an isoflavane, an isoflavan-3-ene, a 3-arylcoumarin, a 3-aryl-4-hydroxycoumarin, a coumestane, a coumaronochromone, an α-methyldeoxybenzoin and a 2-arylbenzofuran. 
     
     
         8 . The method of  claim 1 , wherein the phytooestrogen comprises at least one isoflavonoid selected from the group consisting of genistine, daidzine, genistein, daidzein, glycitine, equol, formononetine, cuneatine, isoprunetine and prunetine, cajanine, orobol, pratensein, santal, junipegenin A, glycitein, afrormosine, retusine, tectorigenin, irisolidone, and jamaicine, or an analog or metabolite thereof. 
     
     
         9 . The method of  claim 1 , wherein the phytooestrogen comprises an isoflavonoid that is an isoflavone or a mixture of isoflavones. 
     
     
         10 . The method of  claim 8 , wherein the isoflavonoid is at least one selected from the group consisting of daidzine, daidzein, genistine and genistein. 
     
     
         11 . The method of  claim 9 , wherein the isoflavone is a mixture of isoflavones. 
     
     
         12 . The method of  claim 11 , wherein the isoflavone is in a form of an extract of soybean isoflavones. 
     
     
         13 . The method of  claim 1 , wherein the carotenoid comprises lycopene, the phytooestrogen comprises an isoflavonoid, and the daily dose of the combination of the lycopene, of the isoflavonoid, and of vitamin C, is included in a single dosage unit or in a plurality of dosage units of the cosmetic composition. 
     
     
         14 . The method of  claim 13 , wherein the daily dose of the combination of the lycopene, of the isoflavonoid, and of vitamin C, is included in two dosage units of the cosmetic composition. 
     
     
         15 . The method of  claim 1 , wherein the cosmetic composition is in a form of dosage units selected from the group consisting of a drinkable solution, a syrup, a tablet, a coated tablet, a gel capsule and a capsule. 
     
     
         16 . The method of  claim 1 , wherein the phytooestrogen is present in the cosmetic composition in a content ranging from 0.0001% to 50% by weight, relative to a total weight of the composition. 
     
     
         17 . The method of  claim 1 , wherein the carotenoid is present in the cosmetic composition in a content ranging from 0.0001% to 50% by weight, relative to a total weight of the composition. 
     
     
         18 . The method of  claim 1 , wherein the vitamin C is present in a content ranging from 0.0001% to 50% by weight, relative to a total weight of the composition. 
     
     
         19 . The method of  claim 1 , wherein the phytooestrogen is present in a content ranging from 0.1% to 10% by weight, the carotenoid is present in a content ranging from 0.02% to 2% by weight, and the vitamin C is present in a content ranging from 0.2% to 12% by weight relative to a total weight of the composition. 
     
     
         20 . The method of  claim 1 , wherein the carotenoid comprises lycopene, and the phytooestrogen comprises an isoflavonoid.